Hi, 1) Did you try to post your problem on the RTP-Proxy-Users' List? http://lists.rtpproxy.org/mailman/listinfo/users Probably, you might get more help there.... 2) Did you try to extract the Audio with Wireshark? If Wireshark can play the Audio (and i assume it is correctly implemented), then the recorded stream as such is correct. Then you can check, if the bug lies in rtpbreak (or as a next step: sox). Just to limit the possible sources of the problem...
Carsten 2010/1/14 Vikram Ragukumar <vraguku...@signalogic.com> > Hello, > > An update, > > I tried using sox to convert the two .raw files into 2 mono channel wave > files. The command line i used is below : > sox -r 8k -b -c 1 -u rtp.0.0.raw rtp0.wav > sox -r 8k -b -c 1 -u rtp.1.0.raw rtp1.wav > > When i listen to the .wav files, i hear speech but it is buried in a lot of > noise. During blank periods (periods of no speech) there is a constant > volume high pitched noise. Also during periods of speech, there seems to be > bursts of noise in the background. > > The other engineer i work with and i, think that it is possibly because > non-speech data is being interpreted as speech. > > What switch options should i change while invoking sox from the command > line to get rid of the noise? > > Thanks and Regards, > Vikram. > > > > Vikram Ragukumar wrote: > >> Hello, >> >> I used Kamailio+rtpproxy to record a session and rtpproxy outputs the >> following files >> >> long_file_name.a.rtp, long_file_name.a.rtcp, long_file_name.o.rtp, >> long_file_name.o.rtcp >> >> http://www.rtpproxy.org/wiki/RTPproxy/FAQ >> From the Rtpproxy FAQ above, i tried to extract the audio using rtpbreak >> and sox. >> >> rtpbreak -W -r long_file_name.a.rtp >> rtpbreak -W -r long_file_name.o.rtp >> >> The above commands generate rtp.0.0.raw, rtp.1.0.raw. >> >> Then when i run sox using >> sox --combine merge -r 8k -A rtp.0.0.raw -r 8k -A rtp.1.0.raw -t wavpcm -s >> out.wav i get the following errors : >> >> sox: invalid option -- - >> sox: -c must be given a number >> >> Is there a switch/anything else that i am missing ? >> >> Thanks in advance, >> Regards, >> Vikram. >> >> >> >> > > > _______________________________________________ > Kamailio (OpenSER) - Users mailing list > Users@lists.kamailio.org > http://lists.kamailio.org/cgi-bin/mailman/listinfo/users > http://lists.openser-project.org/cgi-bin/mailman/listinfo/users > -- Carsten Bock Schomburgstr. 80 22767 Hamburg Germany Mobile +49 179 2021244 Home +49 40 34927217 Fax +49 40 34927218 mailto:cars...@bock.info Mike Ditka <http://www.brainyquote.com/quotes/authors/m/mike_ditka.html> - "If God had wanted man to play soccer, he wouldn't have given us arms."
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